That suggests you have deeper problems with the preinstall being seen there. You may have to get busy creating a recovery disk and even make a
usb installation key(goes a little faster and smoother) and plan a fresh install folowing the guide greg posted earlier to get a fully working copy of Windows running.
The backup tools especially the option for creating a full system are generally found reliable unless there's a problem. A clean install of course while leaving the factory recvery partition intact can clean up the C volume as well as eliminate any bloatwares easy enough. From there you simply look up the drivers needed.
Once any Windows install becomes buggy the solution used here would be simply nuking the present C primary entirely even on the laptops I cleaned up when those were trashed by malwares. Before making backups with any program as far as the OS side having things in prime condition is what you would want. The Windows Easy Transfer tool can usually restore user files and program settings once everything is back on fresh again.
Another thing to suggest here would be running a diagnostics tool on the main drive itself to see if that is starting to see bad sectors which can cause a variety of issues. The hard drives in laptops generally end up taking a bit more pounding overall then any 3 1/2" on a desktop and tend to wear faster at times.
Scheduling the Disk Check tool to run on the next startup can also be a help to solve problems when errors are present on the C volume. To open up an elevated command prompt go to Start>All Programs>Accessories and right cilck on the command prompt icon. You want to select the run as admin option and type in "chkdsk /r". Once you press enter you will need to answer the yes or no message with Y to see the tool scheduled.
You likely have seen that before if you had an improper shutdown where you pressed a key to cancel the Disk Check tool when Windows was first starting up. This time you would want it to run and hopefully fix what it can. If the laptop has a Samsung or Hitachi drive in it the Sea Tools would be one hard drive diagnostics option to run.
SeaTools for Windows | Seagate
Hitachi and Samsung still have their own tools of course with a list of the top 6 free ones seeing those and the Sea Tools included at
Top 6 Free Hard Drive Diagnostic Softwares - Data Recovery Blog